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Finding the Fourth Proportional to 539,716.95, 744,821.01 and 298,014.87

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Solution

The fourth proportional to 539,716.95, 744,821.01 and 298,014.87 is: 411,266.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,716.95 : 744,821.01 = 298,014.87 : x
  2. Step 2: Convert to fraction form
    539,716.95/744,821.01 = 298,014.87/x
  3. Step 3: Cross multiply
    539,716.95x = 744,821.01 × 298,014.87
  4. Step 4: Simplify right side
    539,716.95x = 221,967,736,468.42
  5. Step 5: Solve for x
    x = 221,967,736,468.42/539,716.95
  6. Step 6: Final answer
    x = 411,266.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.